Customization: | Available |
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CAS No.: | 9003-01-4 |
Formula: | (C3h4o2)X |
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1. Properties of polyacrylic acid
Polyacrylic acid is a linear polymer compound with multiple carboxyl functional groups on the molecular chain, so it has strong hydrophilicity and ion exchange capacity. The length of its molecular chain can be regulated by the conditions of the polymerization reaction to obtain polyacrylic acid of different molecular weights. In addition, polyacrylic acid also has good stability, weather resistance, chemical corrosion resistance and biocompatibility.
2. Synthesis method of polyacrylic acid
There are two main methods for synthesizing polyacrylic acid: solution polymerization and emulsion polymerization. Solution polymerization is to polymerize acrylic acid monomers in an organic solvent under the action of an initiator to obtain a polyacrylic acid solution. Emulsion polymerization is to mix acrylic acid monomers, water, emulsifiers and initiators together to form an emulsion, and to polymerize in the emulsion to obtain a polyacrylic acid emulsion. Both methods have their own advantages and disadvantages, and the specific choice should be made according to actual needs.
3. Application fields of polyacrylic acid
1. Water treatment field: Polyacrylic acid, as a highly efficient flocculant, can effectively remove suspended matter and colloidal substances in water and improve the clarity and transparency of water. In addition, polyacrylic acid can also be used as a scale inhibitor, dispersant, etc. to prevent the formation and deposition of scale and protect the normal operation of water treatment equipment.
2. Coatings: Polyacrylic acid, as a film-forming substance for coatings, can improve the adhesion, water resistance and weather resistance of coatings. At the same time, polyacrylic acid can also be used as a thickener, dispersant, etc. for coatings to improve the construction performance and stability of coatings.
3. Papermaking: Polyacrylic acid, as a papermaking auxiliary, can improve the strength, water absorption, crease resistance and other properties of paper. In addition, polyacrylic acid can also be used as a surface treatment agent for paper to improve the gloss and printability of paper.
4. Textiles: Polyacrylic acid, as a finishing agent for textiles, can improve the hygroscopicity, antistatic properties, wrinkle resistance and other properties of textiles. At the same time, polyacrylic acid can also be used as a printing paste, dye dispersant, etc. for textiles to improve the printing and dyeing effects.
5. Cosmetics: Polyacrylic acid, as a thickener, stabilizer, etc. for cosmetics, can improve the texture and use experience of cosmetics. In addition, polyacrylic acid also has moisturizing and softening effects, which can improve the skin care effect of cosmetics.
4. Development prospects of polyacrylic acid
With people's increasing attention to environmental protection and sustainable development, polyacrylic acid, as an environmentally friendly polymer material, has a very broad application prospect. In the future, polyacrylic acid will be more widely used in water treatment, coatings, papermaking, textiles, cosmetics and other fields. At the same time, with the continuous advancement and innovation of science and technology, the synthesis method of polyacrylic acid will also be continuously optimized and improved, providing more possibilities and choices for its application.
Density | 1.09 (30% aq.) |
Boiling point | 116ºC |
Melting point | 106ºC |
Molecular formula | (C3H4O2)x |
Molecular weight | 2000(Average) |
Flash point | 61.6ºC |
Exact mass | 72.0211 |
PSA | 37.3 |
LogP | 0.257 |
Appearance | Colorless viscous liquid |
Refractive index | n20/D 1.442 |
Storage conditions | Sealed at room temperature, away from light, ventilated and dry |
Stability | Stable at room temperature and pressure; avoid moisture, heat and high temperature |
Water solubility | Soluble in water. |
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